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Inventories
6 Months Ended
Dec. 31, 2015
Inventory Disclosure [Abstract]  
INVENTORIES
INVENTORIES
We used the last-in, first-out (LIFO) method of valuing inventories for 47 percent and 47 percent of total inventories at December 31, 2015 and June 30, 2015, respectively. Since inventory valuations under the LIFO method are based on an annual determination of quantities and costs as of June 30 of each year, the interim LIFO valuations are based on our projections of expected year-end inventory levels and costs. Therefore, the interim financial results are subject to any final year-end LIFO inventory adjustments.
 
Inventories consisted of the following: 
(in thousands)
December 31, 2015
 
June 30, 2015
Finished goods
$
295,609

 
$
324,840

Work in process and powder blends
173,360

 
249,629

Raw materials
70,628

 
100,881

Inventories at current cost
539,597

 
675,350

Less: LIFO valuation
(62,098
)
 
(99,819
)
Total inventories
$
477,499

 
$
575,531